Sriwiyanti, Sriwiyanti, and Detiana Detiana. “Effectiveness Of Extension Using Booklet Media Toward Between Nutrition Knowledge Children Elementary School 23 Pagar Agung Lahat Regency Year Of 2019”. STRADA Jurnal Ilmiah Kesehatan, vol. 10, no. 1, May 2021, pp. 56-62, doi:10.30994/sjik.v10i1.597.